Hi, that page is really out of date, sorry about that. You can see the kind
of hardware we currently run here: https://wiki.emulab.net/Emulab/wiki/UtahHardware
> 1. Is FreeBSD the only supported software to install emulab? Can I install
> Emulab on Ubuntu, Redhat or Centos?
FreeBSD only on the boss and ops/fs servers.
> 2. Document states that Memory recommendation is at least 512MB, and preferably 1-2GB. Is it correct that it only requirements this much memory to install emulab or more Memory is needed?
Skip down to the servers section on the page I mention above. Its also
a bit out of date, but much closer to what we run now. These days
you want more like 8GB …
ps: installing Emulab is extremely time consuming and difficult, you need to
have a lot of systems experience (for example, you will have to configure
sendmail on BSD). We have limited time to help these days, we are super busy.